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Try Apollo Studio

Build and run queries against the Apollo Router

The Apollo Router serves the following landing page from its base URL (http://localhost:4000 by default):

Apollo Router default landing page

Apollo Sandbox

The landing page above provides a link to Apollo Sandbox, a powerful web IDE that enables you to build and run operations against your router. Sandbox is a special mode of Apollo Studio that doesn't require an Apollo account.

Apollo Sandbox
Edit on GitHub
@defer support (preview)